Printing-press.



R. MIEHLE. PRINTING PRESS.- APPLICATION FILED D30. 18, 1911. RENEWEDJAN. 20, 1914.

1,093,453,. Patented Apr. 14, 1914.

Arm/MY COLUMBIA PLANnnAPn c'o..wAsH(No'roN, n. c:

* STATES PATENT ornro ROBERT MIEHLE, OF CHICAGO, ILLINOIS, ASSIG-NOR T0CONTINENTAL & COMMERCIAL TRUST & SAVINGS BANK, TRUSTEE, OF CHICAGO,ILLINOIS.

PRINTING-PRESS.

Application filed. December 18, 1911, Serial No. 666,586. RenewedJanuary 20, 1914.

To all whom it may concern Be it known that I, ROBERT MIEHLE, a citizenof the United States, residing at Chicago, in the county of Cook andState of Illinois, have invented a certain new 1n Printlng- 1 and usefulImprovement Presses, of which the following is a full, clear, concise,and exact description, reference being had to the accompanying drawings,forming a part of this specification.

My invention relates to printing presses and has for its object theprovision of improved means for applying ink to the ink bed from whichink is to be transferred to the type or other press printing surface.

My invention is of particular utility in connection with those printingpresses that employ reciprocating ink beds but my invention is not to belimited to presses having reciprocating ink beds.

My invention finds a very useful improvement in connection with thoseprinting presses that employ reciprocating type or press beds but theinvention is not to be restricted to presses of this character.

fviy invention has for its general object the provision of improvedinking mechanism in which the speed of certain of the ink transferringmechanism is materially reduced without the necessity of reducing thespeed of the ink bed from which the ink is transferred to the type bed.By means of my invention the ink may be very evenly distributedpreparatory to its transfer to the type bed or other press printingsurface and the wear upon the mechanism for transferring the ink to saidink bed is materially reduced.

I will explain my invention more fully by reference to the accompanyingdrawing showing the preferred embodiment thereof as the invention iscomprised in a printing press including a reciprocating ink bed and areciprocating pressbed.

In the drawing Figure 1 is a partial end view of a printing pressequipped in ac cordance with my invention; Fig. 2 is a side view ofenough of the printing press to render an understanding of the inventionclear, the ink and press beds being each at one extreme of their travel;and Fig. 3 is also a side view of a portion of the printing pressshowing the press and ink beds at the Specification of Letters Patent.

Patented Apr. 14, 1914.

Serial No. 813,276.

other extreme of their travel, certain additional parts being also shownin Fig. 3.

Like parts are indicated by similar characters of reference throughoutthe different figures.

The printing press frame 1 supports the impression cylinder 2 and theform inking rollers 3. The reciprocating press bed 4 travels beneath theimpression cylinder, this press bed also carrying a main ink bed 5.

Runways 1 are provided for the anti-friction rollers 7 which support thepress bed. These anti-friction rollers are maintained at uniformdistances apart by being journaled in the bars 8. Frames 9 are securedto extensions at the front ends of the bars 8, said frames beingprovided with wheels 1.0 which roll in the ways 6. An auxiliary ink bed11, in alinement with the main ink bed, is carried by the frame 9. Therolling gears 12 are pivotally secured to the bars 8 by the brackets 13.These gears aremeshed with the racks 14, 15, the rack 14 being securedto the press bed while the rack 15 is secured to the ways 6, these waysbeing stationary with respect to the press frame 1. By this constructionthe gears are given half the motion of the type bed and the auxiliaryink bed is given motion equal to one-half the speed of the type bed.

The ink fountain 16 is mounted upon extensions at the front end of thepress frame where the ink fountain roller 16 is also located, this inkfountain roller being oper ated in any well known or preferred manner.Arms 17 are secured to the shaft 18 which is pivotally mounted uponextensions of the press frame, the feed roller 19 being journaled in thearms 17. The feed roller is raised from engagement with the ink fountainroller 16 into engagement with the small transmission roller 20 (asshown in Fig. 2) and lowered again (as shown in Fig. 3) by the cam 21driven by the press mechanism whereby an oscillating motion is given tothe lever 22 through the intermediation of the friction roller and stud23, the lever 22 being pivotally secured to the press frame by the stud2 1-. Oscillating motion is transmitted to the shaft 18 by the rod 25which is pivotally secured to the upper end of the lever 22, and the arm26 which is fixedly secured to the shaft 18, has

the rod 25 pivotally secured to its upper end. This motion is so timedthat while the auxiliary ink bed 11 is at the front end of its travelwhere it engages the large transmitter roller 27, the feed roller isdown and in engagement with the ink fountain roller 16 and when the inkbed 11 is at or near the rear end of its stroke the feed roller is inengagement with the small transmitter roller 20.

A rack 28 is secured to a side of the press bed 4, this rack meshingwith an intermediate gear 29. The gear 29 is fixed upon the shaft 30which is journaled in the press frame 1 and extends through it, the gear31 being secured to the outer end of said shaft. The gear 32, which isfixedly secured to the shaft 33 of the usual vibrator roller 3 mesheswith the gear 29. These gears have the same pitch diameter as the formrollers 3, thereby making the peripheral speed of the form rollers equalto the speed of the press bed.

The gear 34 is pivotally mounted upon the press frame 1 by the stud 35,the gear 34 meshing with the gear 31. The spocket wheel 36 is alsojournaled on the stud 35 and is secured to the gear 34. The sprockets 37and 38 are pivotally mounted on the press frame near the front, thesesprockets being secured together and mounted on the same stud 37 Thesprocket 37 is driven by the sprocket 36 through the sprocket chain 39,while sprocket 38 in turn (being driven by sprocket 37) drives thesprocket 40 through the sprocket chain 42, the sprocket 40 being securedto the shaft 41 which is journaled in the press frame. The ear 43 issecured to the inner end of the shaft 41, the gear 44 being in mesh withthe gear 43 and being fixedly mounted on the shaft of the largetransmitter roller 27, whereby motion is given to the large transmitterroller 27 and the small transmitter roller 20 in continuous engagementwith the larger transmitter roller. In order to make the 'movementsgiven the transmitter rollers 27 and 20 harmonize with the motion of theauxiliary ink bed 11 directly engaged by the larger transmitter roller,the speed of the larger transmitter roller is reduced to half of thespeed of the form rollers 3 since the auxiliary ink bed 11 is given halfthe speed of the main ink bed and press bed 4. This result isaccomplished by making the pitch diameter of the gear 34 twice the pitchdiameter of the gear 31 and the sprocket 36, which are of the samediameter, thereby making the peripheral speed of sprocket 36 half thatof the gear 31. The rest of the gears 43 and the sprockets 37, 38 and 40are of the same size. The rollers 45, 45 and 45 constitute inkingmechanism for transferring ink from the auxiliary ink bed to the mainink bed, these rollers operating successively upon .manner abovedescribed. Ink is taken from the feed roller 19 011 to the smalltransmitter roller 20. The roller 20, on account of its small size,revolves very rapidly and thor 'oughly distributes the ink it receivesfrom the feed roller 19 upon the large transmitter roller 27. As thepress bed advances, the

form rollers pass over the main ink bed and thereafter ink the form.During this time the main ink bed has passed under the distributingrollers and after giving themink leaves them to get more ink from thetransmitter rollers. The feed roller in the meantime has been loweredinto position for engagement with the ink fountain roller 16 (as isshown in Fig. 3) and the main ink bed has advanced until it comes intoen-.

gagement with the distributing rollers 45, 45 and 45 to receive ink fromthem. The end of the stroke is then reached, as shown in Fig. 3, and thepress bed starts back on the printing stroke. The main ink bed takes inkfrom the distributing rollers and leaves them to pass under the formrollers which take ink from it preparatory to inking the form. Duringthis time the auxiliary ink bed takes ink from the transmitter roller 27and then passes under the distributing rollers 45, 45 and 45 which takeink preparatory to transferring it to the main ink bed, where it istaken by the form rollers to ink the form, the positions shown in Fig. 2again being reached.

The auxiliary ink bed is very advantageous, because the distributingrollers do not require any means to start and stop them, other thanengagement with the ink beds. The reason for this is that the auxiliaryink bed reverses them at the rear reversal with the easy crank motion ofthe bed motion mechanism, and even if they were reversed by theauxiliary ink bed coming into engagement with them, as rollers 45 inFig. 2, it would not be injurious to the rollers because the auxiliaryink bed has only half the speed of the press bed. At the front reversalthese rollers are reversed while in engagement with the main ink bed andare reversed with the easy crank motion of the press bed. Theretardation and acceleration that the distributing rollers get whilepassing from one ink bed to the other are not violent enough to causeinjury to the rollers. The arrangement is preferably such that no rolleris in engagement with both ink beds at the same time.

By operating the feed roller between the ink fountain roller and thehalf time or slow speed transmitter roller, no starting device isnecessary for the feed roller, as the slow motion of the transmitterroller will not injure the feed roller when starting it in motion, noris any injury incurred by the feed roller being stopped as it comes intoengagement with the ink fountain roller.

When making a flat ink bed in the usual way, it is necessary toconstruct such bed very heavy and strong since such bed materiallyoverhangs beyond the press bed supports. By dividing the ink bed intotwo as I have done, the ink beds may be made lighter and can be machinedmore easily because of the absence of warping and springing which isencountered in machining a large casting.

By using a divided ink bed, considerable weight is taken off the pressbed,-and while some of this weight is supplied to the bed anti-frictionroller bars, such added weight only runs at half the speed of the pressbed, thereby greatly lessening the momentum to be overcome by the bedmotion mechanism at the reversals of the press bed.

My invention is shown as being embodied in a printing press whose pressbed and ink beds reciprocate, mechanism being present for reducing thespeed of the beds as they near the limits of their travel, whereby thespeed of the main ink bed is reduced when the inking mechanism. 45,45and 4:5 operate thereupon.

It will be seen that I have provided a printing press in which there isincluded an ink bed which is caused to reciprocate at a re duced speedwith respect to the speed of reciprocation of the printing surface. Ihave also provided means whereby the inking mechanism which is employedto supply ink to said ink bed is caused to operate at a reduced speedwith respect to the speed of op eration of the printing surface.

While I have herein shown and particularly described the preferredembodiment of my invention, I do not wish to be limited to the precisedetails of construction shown as changes may readily be made withoutdeparting from the spirit of my invention.

Having thus described my invention, I claim as new and desire to secureby Let ters Patent the following 1. A printing press including main andauxiliary ink beds; inking mechanism for applying ink to the auxiliarybed; inking mechanism operating upon said beds for transferring ink fromthe auxiliary bed to the main bed; inking mechanism for transferring inkfromthe main bed to the press printing surface; and means for moving theauxiliary bed slower than the main bed when the second aforesaid inkingmechanism is operating upon the auxiliary bed.

2. A printing press including main and auxiliary ink beds; inkingmechanism for applying ink to the auxiliary bed; inking mechanismoperating upon said beds for transferring ink from the auxiliary bed tothe main bed; inking mechanism for transferring ink from the main bed tothe press printing surface; and means for moving the auxiliary bedslower than the main bed when the second aforesaid inking mechanism isoperating upon the auxiliary bed and for reducing the speed of the mainbed when said second inking mechanism operates thereupon.

3. A printing press including main and auxiliary reciprocating ink beds;inking mechanism for applying ink to the auxiliary bed; inking mechanismoperating upon said beds for transferring ink from the auxiliary bed tothe main bed; inking mechanism for transferring "ink from the main bedto the press printing surface; and means for moving the auxiliary bedslower than the main bed when the second aforesaid inking mechanism isoperating upon the auxiliary bed.

4. A printing press including main and auxiliary reciprocating ink beds;inking mechanism for applying ink to the auxiliary bed; inking mechanismoperating upon said beds for transferring ink from the auxiliary bed tothe main bed; inking mechanism for transferring ink from the main bed tothe press printing surface; and means for moving the auxiliary bedslower than the main bed when the second aforesaid inking mechanism isoperating upon the auxiliary bed and for reducing the speed of the mainbed when said second inking mechanism operates thereupon.

5. A printing press including main and auxiliary reciprocating ink beds;inking mechanism for applying ink to the auxiliary bed; inking mechanismoperating upon said beds for transferring ink from the auxiliary bed tothe main bed; inking mechanism for transferring ink from the main bed tothe press printing surface; and means for causing said beds toreciprocate in the same directions and causing the auxiliary bed to moveslower than the main bed when the second aforesaid inking mechanism isoperating upon the auxiliary bed.

6. A printing press including main and auxiliary reciprocating ink beds;inking mechanism for applying ink to the auxiliary bed; inking mechanismoperating upon said beds for transferring ink from the auxiliary bed tothe main bed; inking mechanism for transferring ink from the main bed tothe press printing surface; and means for causing said beds toreciprocate in the same directions and causing the auxiliary bed to moveslower than the main bed when the second aforesaid inking mechanism isoperating upon the auxiliary bed and for reducing the speed of the mainbed when said second inking mechanism ope-rates thereupon.

7. A printing press including main and auxiliary reciprocating ink beds;inking mechanism for applying ink to the auxiliary bed; inking mechanismoperating upon said beds for transferring ink from the auxiliary bed tothe main bed; inking mechanism for transferring ink from the main bed tothe press printing surface; and means for causing the auxiliary bed toreciprocate at a lower rate of speed than the main bed and for reducingthe speed of the main bed when said second inking mechanism operatesthereupon.

8. A printing press including main and auxiliary reciprocating ink beds;inking mechanism for applying ink to the auxiliary bed; inking mechanismoperating upon said beds for transferring ink from the auxiliary bed tothe main bed; inking mechanism for transferring ink from the main bed tothe press printing surface; and means for causing the auxiliary bed toreciprocate at a lower rate of speed than the main bed.

9. A printing press including main and auxiliary reciprocating ink beds;inking mechanism for applying ink to the auxiliary bed; inking mechanismoperating upon said beds for transferring ink from the auxiliary bed tothe main bed; inking mechanism for transferring ink from the main bed tothe press printing surface; and means for causing said beds toreciprocate in the same directions with the auxiliary bed moving at alower rate of speed than the main bed and for reducing the speed of themain bed when said second inking mechanism operates thereupon.

10. A printing press including main and auxiliary reciprocating inkbeds; inking mechanism for applying ink to the auxiliary bed; inkingmechanism operating upon said beds for transferring ink from theauxiliary bed to the main bed; inking mechanism for transferring inkfrom the main bed to the press printing surface; and means for causingsaid beds to reciprocate in the same directions with the auxiliary bedmoving at a lower rate of speed than the main bed.

11. A printing press including main and auxiliary reciprocating inkbeds; inking mechanism for applying ink to the auxiliary bed; inkingmechanism operating upon both beds for transferring ink from theauxiliary bed to the main bed and working upon the main bed when itnears the limit of its movement in one direction; inking mechanism forpress printlng surface; and means for causing said beds to reciprocatein the same directions with the auxiliary bed moving at a lower rate ofspeed than the main bed.

12. A printing press including main and auxiliary ink beds; inkingmechanism operating upon said beds for transferring ink from theauxiliary bed to the main bed; inking mechanism for transferring inkfrom the main bed to the press printing surface; and means formovingithe auxiliary bed slower than the main bed when the firstaforesaid V inking mechanism is operating upon the auxiliary bed.

13. A printing press including main and auxiliary reciprocating inkbeds; inking mechanism operating upon said beds for transferring inkfrom the auxiliary bed to the main bed; inking mechanism fortransferring ink from the main bed to the press printing surface; andmeans for causing said beds to reciprocate in the same directions andcausing the auxiliary bed to move slower than the main bed when thefirst aforesaid inking mechanism is operating upon the auxiliary bed.

14. A printing press including main and auxiliary reciprocating inkbeds; inking mechanism operating upon said beds for transferring inkfrom the auxiliary bed to the main bed; inking mechanism fortransferring ink from the main bed to the press printing surface; .areciprocating element; and a traveling .element operatively associatingsaid reciprocating element with the auxiliary ink bed for reducing thespeed of the auxiliary ink bed with respect to the speed of the main inkbed when the first aforesaid inking mechanism operates upon theauxiliary ink bed.-

15. A printing press including main and auxiliary reciprocating inkbeds; inking mechanism operating upon said beds for transferring inkfrom the auxiliary bed to the main bed; inking mechanism fortransferring ink from the main bed to the press printing surface; androllers rotatably mounted upon the auxiliary ink bed structure andengaging the main ink bed structure at the peripheral portions of therollers,

the press including means for reducing the speed of the auxiliary bedwith respect to the speed of the main bed.

In witness whereof, I hereunto subscribe my name this sixteenth day ofDecember,

ROBERT MIEHLE. Witnesses:

MAX S. RosnNzwEIG, ETTA L. WHITE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. 0.

